|
|
PDF L4947R Data sheet ( Hoja de datos )
| Número de pieza | L4947R | |
| Descripción | 5V-0.5A VERY LOW DROP REGULATOR WITH RESET | |
| Fabricantes | STMicroelectronics | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de L4947R (archivo pdf) en la parte inferior de esta página. Total 6 Páginas | ||
|
No Preview Available !
L4947
® L4947R
5V-0.5A VERY LOW DROP REGULATOR WITH RESET
PRECISE OUTPUT VOLTAGE (5V ± 4%)
OVER FULL TEMPERATURE RANGE
(– 40 / 125 °C)
VERY LOW VOLTAGE DROP (0.75Vmax)
OVER FULL T RANGE
OUTPUT CURRENT UP TO 500mA
RESET FUNCTION
POWER-ON RESET DELAY PULSE DE-
FINED BY THE EXTERNAL CAPACITOR
+ 80V LOAD DUMP PROTECTION
– 80V LOAD DUMP PROTECTION
REVERSE VOLTAGE PROTECTION
SHORT CIRCUIT PROTECTION AND THER-
MAL SHUT-DOWN (with hysteresis)
LOW START UP CURRENT
DESCRIPTION
The L4947/L4947R is a monolithic integrated cir-
cuit in Pentawatt package specially designed to
provide a stabilized supply voltage for automotive
and industrial electronic systems. Thanks to its
very low voltage drop, in automotive applications
the L4947/L4947R can work correctly even during
the cranking phase, when the battery voltage
BLOCK DIAGRAM
Pentawatt
ORDERING NUMBERS: L4947
L4947R
could fall as low as 6V. Furthermore, it incorpo-
rates a complete range of protection circuits
against the dangerous overvoltages always pre-
sent on the battery rail of the car. The reset func-
tion makes the device particularly suited to supply
microprocessor based systems : a signal is avail-
able (after an externally programmable delay) to
reset the microprocessor at power-on phase ; at
power-off, this signal becomes low inhibiting the
microprocessor.
This is advanced information on a new product now in development or undergoing evaluation. Details are subject to change without notice.
June 2000
1/6
1 page  
DIM.
A
C
D
D1
E
E1
F
F1
G
G1
H2
H3
L
L1
L2
L3
L4
L5
L6
L7
L9
M
M1
V4
MIN.
2.4
1.2
0.35
0.76
0.8
1
3.2
6.6
10.05
17.55
15.55
21.2
22.3
2.6
15.1
6
4.23
3.75
mm
TYP.
3.4
6.8
17.85
15.75
21.4
22.5
0.2
4.5
4
MAX.
4.8
1.37
2.8
1.35
0.55
1.19
1.05
1.4
3.6
7
10.4
10.4
18.15
15.95
21.6
22.7
1.29
3
15.8
6.6
MIN.
0.094
0.047
0.014
0.030
0.031
0.039
0.126
0.260
0.396
0.691
0.612
0.831
0.878
0.102
0.594
0.236
4.75 0.167
4.25 0.148
40° (typ.)
inch
TYP.
0.134
0.268
0.703
0.620
0.843
0.886
0.008
0.177
0.157
MAX.
0.189
0.054
0.110
0.053
0.022
0.047
0.041
0.055
0.142
0.276
0.409
0.409
0.715
0.628
0.850
0.894
0.051
0.118
0.622
0.260
0.187
0.167
L4947 - L4947R
OUTLINE AND
MECHANICAL DATA
Pentawatt V
A
B
C
L5
L
L1
L8
V V1 V
R
D
D1 L2
L3
V3
R
R
V4
E
M1
V
M
H3 H1
Dia.
L7
L6
V4
G G1
F1 F
H2
RESIN BETWEEN
LEADS
V4
L9
V
H2
F
E E1
5/6
5 Page | ||
| Páginas | Total 6 Páginas | |
| PDF Descargar | [ Datasheet L4947R.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| L4947 | 5V-0.5A VERY LOW DROP REGULATOR WITH RESET | STMicroelectronics |
| L4947PD | 5V-0.5A VERY LOW DROP REGULATOR WITH RESET | STMicroelectronics |
| L4947R | 5V-0.5A VERY LOW DROP REGULATOR WITH RESET | STMicroelectronics |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |